Cop winding machine with independent winding points



March 25, 1941. w. REINERS :TAL 2,236,300

GOP WINDING MACHINE WITH INDEPENDENT VIINDING POINT'S Find nay 15, 1939 IN... x

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Patented Mar. 25, 1941 l' ,PlrrEN'r OFFICEl- COP WINDDTG MACHINE WTH INDEPEND- ENT WINDING Wilhelm Reiners, Walter Reiners, and Gustav Kahliach, Gladbach-Riley, Germany, assignora to W. Schlafhorat Co., Gladbach-Rheydt, Germany, a corporation of Germany Application May 13, 1939, Serial No. 273,478 In Germany May 20, 1938 4 calms. The invention relatesto. cop winding machines with independent winding units. on which the.

This idea is improved'upon accordingv to the invention in the sense that, omitting the magazines, grlppers controlled by the actuating gear of each winding unit are provided, which grippers automatically take upthe empty tubes from conveying means preferably arranged below the winding spindles, and operate in synchronism with the work at each Winding unit to transfer an empty tube to each spindle from which a cop has been doffed. `'Ihe invention is illus'tratedrin the accompanying drawing, in which: Fig. 1 shows in front elevation, partly in section on lineI-I ofA Fig. v2, tour windingpoints4 Ia-d) of a copping rail with the empty tube grippers in different positions,

Fig. 2 shows a single winding point and conveyor chain in top plan view, Fig. 3 shows a special arrangement at the reversal point opposite: the feeding point of the conveyorchain. v v

The conveyor chain I is driven in thevusual manner by means of a shaft 2 and. sprocket wheels 6, 1. Every other chain link on each vside 40 is formedvwith-a rest 2, 4 having a notch I3 to provide troughs for the reception of empty tubes. The outer edges of the rests 3, l are so shaped that, as they run under a magazine 5, they always catch the lowermost tube and push it into the notches 50. g The windingmachine has any desired'number of winding unitsonly four of which are shown in the drawing at a, b, c, d, respectively, Fig. 1. Each comprises a lWinding spindle 9 mounted ina gear box 8. The details of the driving and sup porting head vfor the tubes are generally known and therefore not shown. The `gear box l also accommodatesra rock shaft III, whose rocking movement is controlled by the control gear in the gear box of the winding unit with, which it is associated, in the manner required by the oscillating movement of levers II, I2 nxed toshaft Il. as hereinafter described. Bell crank levers Il, 22 are oscillatable about pins I3 on the levers II, I2, their movement being limited by stop pins 23, 5 24.- The arms I4 of the bell crank levers I4, 22 are connected by a cross bar i5. The front end of each oi' the arms I4 is constructed as a gripper trough Il. Cover fingers I9, oscillatable on a common shaft I1, serve for closing the gripper 10 troughs I8 and are maintained in closing position under the influence of a spring I3. The shaft I1 has at one end a lug 20, which in the position shown at winding unit a in Fig. 1 strikes against a stop 2Irfxed on the gear box, with the result 15 that the gripper trough I6 is opened by raising the fingers I9 against the action of the spring I8. The shaft I9 and levers Il, I2 fixed thereto constitutel a rocking frame, while the bell crank levers Il, 22, tied together by cross bar I5 and 20 formed with gripper troughs I6V constitute a holderframe, the two frames together forming a transfer., device for transferring tubes from the conveyor I to the spindles 9. The transfer device moves between the three positions shown in 25 Fig. 1 at the winding units a, b, and c, the transfer device atunit d being in the same position as at unit b, with the exception of one of its controlling elements to be described presently. The

.position at winding unit a is the receiving posi- 30 tion, atwhich the transfer 'device is supplied with a tube from the conveyor I. The position at unit b is the intermediate position, at which the transfer device, supplied with a tube, waits for the previous cop to be completed and doffed, before 35 moving to the donning position, which is shown vat unit c. On its return movement the transfer device goes first to the intermediate position4 shown at unit d and is then restored to receiving position, shown at unit a. The movements from 40 receiving position to intermediate position and from intermediate position to receiving position are executed by the holder frame alone and are produced by the coaction of the conveyor with the transfer device. The movements from interI 45 mediate position to donning position and back to intermediate position are executed by the holder frame. and the rocking frame swinging together on their pivotal connection with the winding unit and are produced by the'control gear of the wind- 50 ing unit. To carry out these movements of the transfer device. the `following mechanism is provided:

A pin 25 is rotatably mounted or: the free end of the arm 22 of the inner bell crank lever I4, 22, 55

direction.

and through this pin a rod 2i extends, which' is fixed on a bolt 21 of a small lever 2l, forming therewith a bell crank lever. Thisrod`25 is slidably guided in the pin 25. A spring 25 is slipped on to the 'rod 25 between the pin 25 and the -bolt 21 and tends to press these twoparts apart. The bolt 21 in turn is mountedon the end of a lever 30 oscillatable about a pin 3|,vthe-'movement of the' lever being limited by abutment pins 32, $33; The lever 28 carries on its free end a small abutment plate 34 and the lever I4 an abutment plate 25: These abutment plates, when the transfer device is in certain positions, can come into contact, respectively, with control abutments 36, 31 on the conveyor chain I. An abutment I8 is further provided on the gear box I to limit theV swinging movement of the lever II in upward tube'from the conveyor I, itstands in the receiving position shown at a. The abutment plates 34 ari`d`35 are both out of the planes of abutments 38 and v31 and no action takes place until a tube resti; 4 brings a tube H to the gripper jaws I5, which stand uncovered by fingers I9 ready to receivef the tube. The action is commenced by the entranceof a tube into the gripper jaws I5, which resultsin pressing the levers I4 slightly forwards asthe-cha'in I moves on. This raises the pin 25 .and turns the bell crank lever 25, 2l so that the abutment *plate 35 comes into the path of the control abutment 31 on the conveyor chain I. This movement is therefore only possible when a tubeand' not when a chain link without tube comes." into the range of the gripper trough It. Theplate. 35 is in turn pushed forwards by the abutment 31, with the result that the lever I4 moves into its vertical position and the transfer device assumes the intermediate position shown at winding unit b. The bolt 21 all this time is in its upperfposition determined by the pin 32 and the abutment plate 34 remains above the level of control abutments 36.

Asvso'n as the work at the winding unit is terminated and the finished cop is ejected by the .contro1 gear, Ythe gear, through the inter- ;of a frictionclutch (not shown), causes the levers' il, I2 to move upwards until the lever II and bolt 21 strike against the abutment 3B, the-bolt 21 being at'the same time pressed into the position limited by the .pin 33 where it is held byuspring 29,as shown at winding unit c. In this position, which is the donning position, the

` empty tube is between the driving head and the counter supporting head of the winding spindle 9 land is 4gripped,thereby in the usual manner and retained when the levers II. I2 descend. As the levers II, I2 return to the intermediate position once more, as shown at the winding unit d, the plate I4, owing to the lowered position of lever 30, comes under the chain I and consequently into the range of the abutments 36. During the feed of the chain I the bell crank lever 28, 25 swings, under the action of the abutment 36, with the result that the pin 25 is depressed and the levers I4, together with the gripper trough I6, are again brought into the receiving position shown at a.

The finished cops ejected from the winding units are guided in the usual manner over guide plates to collecting receptacles or conveyor bands for full bobbins.

The feeding speed of the chain I is so calculated that in a unit of time more empty tubes are supplied than are required vby all the-winding units. To carry along the excess number of tubes over the turning point at the end of the copping rail, retainers in the form of hooks 48 (Fig. 3), pivoted by pins 41 on the chain links carrying tube rests 3, 4, are provided to engage the undelivered tubes at the end of the conveyor and hold them'to the tubes rests. Each hook 48 has a nnger 45, into the path of which projects a pin 44 on a boss 43 of a ring'42 secured to stationary sprocket shaft 4I. The pin l44 *throws each hook 48 as it reaches the end of the conveyor, into position to engage and hold any tube remaining on the tube rest. Apin 49 on hook 4l is provided to engage a lug (not shown) at the left end of the conveyor, to release the tubebefore it reaches the-rst transfer device.

What we kclaim as our invention and desire to secure by Letters Patent of the United States is:

1. In combination with a winding unit including a spindle adapted to wind cops on tubes, tubesupplying means comprising a transfer device; a conveyor having means for carrying tubes to said transfer device; said transfer device being movable between three main positions, namely, receiving position, intermediate position and tubedonning position; means whereby said conveyor moves said transfer device from receiving position to intermediate-position on supplying a tube thereto; means operable by the winding unit for moving said transfer device from intermediate to donning position, and back to intermediate position; and means whereby said conveyor moves the `transfer device, after its return to intermediate position from intermediate position to receiving position.

2. A mechanism as described in claim l, wherein said means whereby said conveyor moves said transfer device from receiving position to intermediate position comprises abutment members on said conveyor and said transfer device normally in non-coacting position when said transfer device is in receiving position, and means whereby one of said abutment members is moved into coacting position by the engagement of a tube carried by said conveyor with said transfer device.

3. A mechanism as described in claim 1, wherein said transfer device comprises a rocking frame pivotally connected to said winding unit and a holder frame articulated to said rocking frame, the movement of said transfer device between receiving position and intermediate position being a lrocking movement of said holder frame on said rocking frame, and the movement of said transfer device from intermediate position to donning position and back to intermediate position being a rocking movement of both said frames together about the pivotal connection of said rocking frame to said winding unit.

4. In combination with a winding unit including a spindle adapted to wind cops on tubes', tubesupplying means comprising a transfer device; a conveyor having means for carrying tubes to said transfer device; said transfer device being movable between three main positions, namely, Yreceiving position, intermediateposition and tubedonning position; means whereby said conveyor moves said transfer device from receiving position to intermediate position on supplying a tube thereto; means operable by the winding unit for moving said transfer device from intermediate to donning position. and back to intermediate position; means including abutment members on said conveyor and said transfer device'for moving the transfer device, after its return to intermediate position, from intermediate position to receiving position; said abutment members being normally in non-coacting position when said transfer device has moved from receiving position to intermediate position; and-means whereby one of said abutment members is shifted during the movement of said transfer device by said winding unit, in order to bring said abutment members into coacting relation upon the return oi' said transfer device from donning position to intermediate position.

WILHELM REINERS. WALTER REINERS.

GUSTAV KAHLISCH. 

